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[FEAT MERGE]: online optimizer stats gather.

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Co-authored-by: obdev <obdev@oceanbase.com>
This commit is contained in:
Monk-Liu
2023-01-28 13:54:38 +08:00
committed by ob-robot
parent 735401c8d7
commit 9484175163
74 changed files with 3416 additions and 85 deletions
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18
src/sql/engine/aggregate/ob_aggregate_processor.cpp
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@ -4846,6 +4846,15 @@ int ObAggregateProcessor::get_llc_size()
}
int ObAggregateProcessor::llc_add_value(const uint64_t value, const ObString &llc_bitmap_buf)
{
int ret = OB_SUCCESS;
if (OB_FAIL(llc_add_value(value, const_cast<char*>(llc_bitmap_buf.ptr()), llc_bitmap_buf.length()))) {
LOG_WARN("fail to add value", K(ret));
}
return ret;
}
int ObAggregateProcessor::llc_add_value(const uint64_t value, char *llc_bitmap_buf, int64_t size)
{
int ret = OB_SUCCESS;
uint64_t bucket_index = value >> (64 - LLC_BUCKET_BITS);
@ -4855,10 +4864,10 @@ int ObAggregateProcessor::llc_add_value(const uint64_t value, const ObString &ll
} else {
pmax = ObExprEstimateNdv::llc_leading_zeros(value << LLC_BUCKET_BITS, 64 - LLC_BUCKET_BITS) + 1;
}
ObString::obstr_size_t llc_num_buckets = llc_bitmap_buf.length();
if (OB_UNLIKELY(llc_bitmap_buf.length() != get_llc_size())) {
ObString::obstr_size_t llc_num_buckets = size;
if (OB_UNLIKELY(size != get_llc_size())) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("buffer size don't match", K(llc_bitmap_buf.length()), K(get_llc_size()));
LOG_WARN("buffer size don't match", K(size), K(get_llc_size()));
} else if (OB_UNLIKELY(!ObExprEstimateNdv::llc_is_num_buckets_valid(llc_num_buckets))
|| OB_UNLIKELY(llc_num_buckets <= bucket_index)) {
ret = OB_ERR_UNEXPECTED;
@ -4866,8 +4875,7 @@ int ObAggregateProcessor::llc_add_value(const uint64_t value, const ObString &ll
K(llc_num_buckets), K(bucket_index), K(ret));
} else if (pmax > static_cast<uint8_t>(llc_bitmap_buf[bucket_index])) {
// 理论上pmax不会超过65.
(const_cast<ObString &>(llc_bitmap_buf)).ptr()[bucket_index] = static_cast<uint8_t>(pmax);
LOG_DEBUG("llc add value", K(pmax), K(bucket_index));
llc_bitmap_buf[bucket_index] = static_cast<uint8_t>(pmax);
}
LOG_DEBUG("llc add value", K(pmax), K(bucket_index));
return ret;